BC Class 1–4 Practice Test 1

All 30 questions in this test

Every question and its answer choices. The correct answers and explanations appear when you take the test above.

1. Within what tractor pressure range must trailer air shut off automatically?

   1. 20 to 45 p.s.i.
   2. 90 to 100 p.s.i.
   3. Below 5 p.s.i.
   4. 60 to 90 p.s.i.

2. How far from the vehicle it escorts must a pilot car stay?

   1. Between 10 and 50 m
   2. Directly beside it
   3. Between 100 and 500 m
   4. Within 1 km

3. When backing a semi-trailer, which way do you first turn the steering wheel?

   1. The same way the trailer should go
   2. It does not matter
   3. Opposite to where the trailer should go
   4. Straight, then the same way

4. What must a commercial passenger vehicle seating more than 10 carry?

   1. A defibrillator and oxygen
   2. Only a fire extinguisher mounted near the driver
   3. Two spare tires and chains
   4. A first-aid kit, spare tire and fire extinguisher

5. Team drivers split sleeper berth time. What is the minimum length of each period?

   1. Four hours
   2. Two hours
   3. Six hours
   4. Eight hours

6. At about what pressure does the safety valve on the first reservoir open?

   1. About 100 p.s.i.
   2. About 150 p.s.i.
   3. About 125 p.s.i.
   4. About 60 p.s.i.

7. In a double-trailer combination, which trailer is most likely to roll over?

   1. The tractor
   2. The first trailer
   3. They are equally likely
   4. The last trailer

8. How much can trailer side skirts and other aerodynamic features improve fuel economy?

   1. 15 to 20 per cent
   2. 1 to 2 per cent
   3. They only improve looks
   4. 40 to 50 per cent

9. You park a single-unit truck uphill with no curb. Which way do you turn the wheels?

   1. Right, toward the road edge
   2. Left, toward the centre of the road
   3. Straight ahead
   4. Away from the slope

10. May a vehicle carrying dangerous goods be used for an ICBC road test?

    1. Yes, if it is placarded
    2. Yes, for Class 1 only
    3. No
    4. Yes, with the shipper's consent

11. Which wear pattern shows a tire is underinflated?

    1. One side only wears faster
    2. Wear stays perfectly even
    3. The centre of the tread wears faster
    4. The outer edges of the tread wear faster

12. Once coupled, how should you first test the trailer service brakes?

    1. Lock up the brakes on a hill
    2. Pull the trailer supply valve while moving
    3. Pump the foot brake at highway speed
    4. Apply the trailer hand valve at slow speed

13. The low-air warning comes on while you drive. What should you do?

    1. Release the spring brakes
    2. Keep going to the next town
    3. Pump the brakes to raise pressure
    4. Stop and find the cause before going on

14. After the first check, when is the next cargo securement check due?

    1. At a duty change, 3 hours or 240 km
    2. Once every 24 hours
    3. Only at the destination
    4. Every 80 km of driving, without any exception

15. What should you see when checking the fifth wheel from the side?

    1. A small gap for the trailer to pivot
    2. The slider pin unlocked
    3. No daylight between plate and apron
    4. Jaws open around the kingpin

16. At highway speed, what is the minimum following time for a bus or heavy truck?

    1. Ten seconds
    2. Two seconds
    3. Three seconds
    4. Five seconds

17. What must the total working load limit of your tiedowns be?

    1. At least 50 per cent of the cargo weight
    2. At least 20 per cent of the cargo weight
    3. At least 100 per cent of the cargo weight
    4. Equal to the vehicle's GVW

18. To turn right you must swing into the oncoming lane, but a car is coming. What should you do?

    1. Let it pass or stop; do not back up
    2. Cut the corner over the curb
    3. Back up to give it room
    4. Sound the horn and continue

19. You drain only the supply reservoir and the primary gauge also drops. What might be faulty?

    1. A one-way check valve
    2. The safety valve
    3. The governor
    4. The foot valve

20. On a highway, how much space should you leave between your large commercial vehicle and another large commercial vehicle?

    1. At least 150 m (500 ft)
    2. At least 20 m (65 ft)
    3. At least 60 m (200 ft)
    4. At least one vehicle length

21. What is the maximum stroke of a standard Type 30 brake chamber?

    1. 2½ inches (65 mm)
    2. 1¾ inches (45 mm)
    3. 1 inch (25 mm)
    4. 4 inches (100 mm)

22. How do you avoid compounding during a pre-trip brake test?

    1. Apply the spring brakes first, then press the pedal hard
    2. Pump the foot valve quickly
    3. Release the spring brakes before a full application
    4. Use the trailer hand valve only

23. For a single-unit truck, what air loss is allowed during the one-minute leakage test?

    1. 6 p.s.i. per minute
    2. 1 p.s.i. per minute
    3. 4 p.s.i. per minute
    4. 3 p.s.i. per minute

24. You must order a disorderly passenger out of the taxi. Where should you let them out?

    1. At the original pickup point
    2. Only at a police station
    3. Immediately, wherever the taxi happens to be
    4. Somewhere safe, near other transport

25. Between 90 and 100 km/h, about how much of the fuel goes to overcoming air resistance?

    1. About one-tenth
    2. About half
    3. Almost all
    4. About one-quarter

26. An ambulance approaches with lights and siren. What must other drivers do?

    1. Speed up to get out of the way as quickly as possible
    2. Pull to the nearest edge and stop clear of intersections
    3. Stop wherever they are
    4. Keep going but move to the left lane

27. May you load items on the tailgate?

    1. No
    2. Yes, for short trips
    3. Yes, if the gate is chained
    4. Yes, if they are tied

28. What does the heavy trailer endorsement (code 20) allow on a Class 4 or 5 licence?

    1. Tow a second trailer behind a fifth wheel
    2. Drive a bus seating more than 25 people
    3. Drive any truck or bus that is equipped with air brakes
    4. Tow a trailer over 4,600 kg if neither unit has air brakes

29. Before opening the doors at a stop, from how far must the school bus be visible in each direction?

    1. At least 60 m
    2. At least 30 m
    3. At least 150 m
    4. At least 85 m

30. Before leaving the curb in a bus, how should you check traffic?

    1. Wait for a passenger's signal
    2. Sound the horn and go
    3. Mirrors alone
    4. Mirror and over your shoulder